Converting xml to domain object in Grails
grails, grails-domain-class, groovy, xmlslurper
Solution
If the source of the XML is a web request, you can add `parseRequest: true` to the UrlMapping for your controller, grails will parse the XML request automatically. The XML will be presented as `params` and you can do data binding the same as any other request.
If you're getting the XML from another source, take a look at the XML to parameter map conversion in the class `XMLParsingParameterCreationListener.groovy`.
Problem
I'm a grails newbie working on a project for fun. I'm serializing a class like this: ``` def msg = (listing as XML).toString() ``` the trying to deserialize a class using the XMLSlurper like this: ``` def root = new XmlSlurper().parseText(listingString) def sellerNode = root.seller ``` I'm trying to reconstruct this object: ``` Listing{ Date dateCreated String description Date endDateTime String name Float startingPrice Customer winner static hasMany = [bids: Bid] // B-4 static belongsTo = [seller: Customer] } } ``` from this xml: ``` <?xml version="1.0" encoding="UTF-8"?> <listing> <bids> <bid> <amount>10.5</amount> <bidder> <accountExpired>false</accountExpired> <accountLocked>false</accountLocked> <dateCreated/> <emailAddress>validguy@valid.com</emailAddress> <enabled>false</enabled> <password>secret</password> <passwordExpired>false</passwordExpired> <username>validguy</username> </bidder> <dateCreated>2012-04-08 21:16:41.423 CDT</dateCreated> <listing/> </bid> <bid> <amount>10.0</amount> <bidder> <accountExpired>false</accountExpired> <accountLocked>false</accountLocked> <dateCreated/> <emailAddress>validguy@valid.com</emailAddress> <enabled>false</enabled> <password>secret</password> <passwordExpired>false</passwordExpired> <username>validguy</username> </bidder> <dateCreated>2012-04-08 21:16:41.415 CDT</dateCreated> <listing/> </bid> </bids> <dateCreated/> <description>A test listing</description> <endDateTime>2012-04-09 21:16:41.407 CDT</endDateTime> <name>Default</name> <seller> <accountExpired>false</accountExpired> <accountLocked>false</accountLocked> <dateCreated/> <emailAddress>validguy@valid.com</emailAddress> <enabled>false</enabled> <password>secret</password> <passwordExpired>false</passwordExpired> <username>validguy</username> </seller> <startingPrice>10.0</startingPrice> <wasNotificationSent>false</wasNotificationSent> <winner> <accountExpired>false</accountExpired> <accountLocked>false</accountLocked> <dateCreated/> <emailAddress>validguy@valid.com</emailAddress> <enabled>false</enabled> <password>secret</password> <passwordExpired>false</passwordExpired> <username>validguy</username> </winner> </listing> ``` First I'm having issues getting to the values of each node. I've tried def seller = new Customer(name:sellerNode.@username) but that doesn't work since I assume @username needs to be an attribute and not an element. Second, do I have to parse this xml "by hand"? Isn't there a better way to deserialize this xml automatically? I already looked at a couple of posts and including this one: Import XML into a Grails Domain Class however as you can see, my xml doesn't have attributes like the xml in this post. Thanks,